ISO 9969熱塑管. 環(huán)剛度的測定—標(biāo)準(zhǔn)名稱

ISO 9969 Thermoplastics pipes - Determination of ring stiffness

ISO 9969熱塑管. 環(huán)剛度的測定

ISO 9969熱塑管. 環(huán)剛度的測定—適用范圍

Scope：

This International Standard specifies a test method for determining the ring stiffness of thermoplastics pipes having a circular cross section.

ISO 9969熱塑管. 環(huán)剛度的測定—相關(guān)標(biāo)準(zhǔn)

ISO 9969熱塑管. 環(huán)剛度的測定/Thermoplastics pipes - Determination of ring stiffness

GB/T 9647熱塑性塑料管材 環(huán)剛度的測定/Thermoplastics pipes — Determination of ring stiffness

YD/T 841.1地下通信管道用塑料管 第1部分：總則/Plastic duct for telecommunication underground conduit Part 1: general

ASTM D2412用平行板加載法測定塑料管外部加載特征的標(biāo)準(zhǔn)試驗方法/Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading